Hi jaclaz, first : thanks for these links ! second : i'll go for a DIY , but recycling a HDD enclosure self-powered . and last : to be honest, connectors #3 and #2 (seem) to be the SAME , (for me) #1 and #2 are not ... only if you can find the specifications , i've tried googling for 2 hours and nothing . ps : sure i am not joking , because YOU are looking around l.e:link have a nice time !